MESON Chess Problem Database

Problem Display
PID: 207546 (B2N1b2/r1p2p1K/3P1Rnp/1p2k1r1/p3Pp1B/3pp3/5N2/2R3Q1 w - - 0 1)

Collins, Francis Charles

Amateur Chess Magazine, 1872

B2N1b2/r1p2p1K/3P1Rnp/1p2k1r1/p3Pp1B/3pp3/5N2/2R3Q1

#2

10 + 13

5808 Preston Guardian 1880
15239 Valois Notebooks 2020
6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Sc6#
    • 1...Kxf6
      • 2.Sg4#
    • 1...Rxg1
      • 2.Sc6#
    • 1...Rg2
      • 2.Sc6#
    • 1...Rg3
      • 2.Sc6#
    • 1...Rg4
      • 2.Sc6#
    • 1...Rf5
      • 2.Sc6#
    • 1...Rh5
      • 2.Sc6#
  • Tries
    • 1.Rc4?
      • threat
        • 2.Qa1#
      • 1...Kxf6
        • 2.Sg4#
      • 1...Rxg1
        • 2.Sxd3#
        • 2.Sc6#
        • 2.Sxf7#
      • 1...bxc4!
    • 1.Rc5+?
      • 1...Kxf6
        • 2.Sg4#
        • 2.Rf5#
      • 1...Kd4!
    • 1.Rxc7?
      • threat
        • 2.Qa1#
      • 1...Kd4
        • 2.Qa1#
      • 1...Kxf6
        • 2.Sg4#
      • 1...Rxg1
        • 2.Sc6#
      • 1...Rxc7!
    • 1.Re6+?
      • 1...Kd4
        • 2.Sc6#
      • 1...fxe6!
    • 1.Qxg5+?
      • 1...Kd4
        • 2.Sc6#
        • 2.Qc5#
        • 2.Qd5#
      • 1...hxg5!
  • Keys
    • 1.Rc2!
      • threat
        • 2.Qa1#
      • 1...Kd4
        • 2.Sc6#
        • 2.Qa1#
      • 1...Kxf6
        • 2.Sg4#
      • 1...Rxg1
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • K(f);S_FLIGHT::S(J)
    • K(f);P_SPINR(g),S_FLIGHT,XR(G)::S(C)
    • R(g);XQ(B)::S(J)
    • R(g);::S(J)
  • Tries
    • Try
      • R(A);
      • Threat
        • QAB(B)
      • Vars
        • K(f);P_SPINR(g),S_FLIGHT,XR(G)::S(C)
      • Refutation
        • P(e);XR(A)
    • Try
      • R(A);CHECK
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • R(A);XP(k)
      • Threat
        • QAB(B)
      • Vars
        • K(f);S_FLIGHT::QAB(B)
        • K(f);P_SPINR(g),S_FLIGHT,XR(G)::S(C)
        • R(g);XQ(B)::S(J)
      • Refutation
        • R(j);XR(A)
    • Try
      • R(G);CHECK
      • Vars
        • K(f);S_FLIGHT::S(J)
      • Refutation
        • P(l);XR(G)
    • Try
      • Q(B);CHECK,XR(g)
      • Refutation
        • P(i);XQ(B)
  • Actual
    • R(A);
    • Threat
      • QAB(B)
    • Vars
      • K(f);P_SPINR(g),S_FLIGHT,XR(G)::S(C)
      • R(g);XQ(B)::S(J)
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